See how many rotations a record makes for a given play time.
At a set speed the platter turns a fixed number of times per minute, so total rotations scale directly with play time. Knowing revolutions matters for groove spacing, stylus wear and why the same song runs longer at 33 than at 45.
Vinyl RPM Rotations
Rotations = RPM x minutes; seconds per rotation = 60 / RPM
Rotations = RPM x minutes; seconds per rotation = 60 / RPM At a set speed the platter turns a fixed number of times per minute, so total rotations scale directly with play time.
Knowing revolutions matters for groove spacing, stylus wear and why the same song runs longer at 33 than at 45.
This calculator takes 2 inputs: Record speed, Play time. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.